Daniel J Walsh wrote:
Richard E Miles wrote:
On Sun, 29 Jan 2006 22:53:25 -0600
Justin Willmert <justin@xxxxxxxxxx> wrote:
Ivan Gyurdiev wrote:
I'm cc-ing this to the fedora-selinux-list. I think some of the
problems may be applicable there.
OK, after some more testing, when I disable SELinux, many of the
errors go away. First of all, I get rid of the error message
saying user can not be found and with it the 'still running as
root' error. Second, it is able to access the bayes_journal file
(as long as normal unix permissions are right, which I've figured
out). So I guess the problem is an SELinux issue which I can't
solve. I'd attach some avc error messages, but I can't seem to
find any. I've looked in maillog, secure, and messages, but nothing.
Have you looked in the audit log, where all such messages are
usually found ?
/var/log/audit.log
Below is what showed up in audit/audit.log when I sent a message
through
spamassassin. I'm _*really*_ rusty on SELinux...it's the one thing I
have to deal with quite often that I haven't been able to learn how to
use...it's so foreign to me. I've never looked in audit.log before: the
avc messages used to show up in messages, but now as far back as my
logs
go, I don't have a single avc message. This all looks like jibberish to
me, so I need your guy's help.
Thanks,
Justin
type=AVC msg=audit(1138596151.681:104174): avc: denied {
name_connect } for pid=23796 comm="spamd" dest=389
scontext=root:system_r:spamd_t
tcontext=system_u:object_r:ldap_port_t tclass=tcp_socket
type=SYSCALL msg=audit(1138596151.681:104174): arch=40000003
syscall=102 success=no exit=-13 a0=3 a1=bfb2dc20 a2=1229cb8 a3=7
items=0 pid=23796 auid=600 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0
sgid=0 fsgid=0 comm="spamd" exe="/usr/bin/perl"
type=SOCKADDR msg=audit(1138596151.681:104174):
saddr=02000185C0A801940000000000000000
type=SOCKETCALL msg=audit(1138596151.681:104174): nargs=3 a0=7
a1=9b1fe80 a2=10
type=AVC msg=audit(1138596153.220:104175): avc: denied {
name_connect } for pid=23796 comm="spamd" dest=389
scontext=root:system_r:spamd_t
tcontext=system_u:object_r:ldap_port_t tclass=tcp_socket
type=SYSCALL msg=audit(1138596153.220:104175): arch=40000003
syscall=102 success=no exit=-13 a0=3 a1=bfb2dc20 a2=1229cb8 a3=7
items=0 pid=23796 auid=600 uid=0 gid=0 euid=99 suid=0 fsuid=99
egid=99 sgid=0 fsgid=99 comm="spamd" exe="/usr/bin/perl"
type=SOCKADDR msg=audit(1138596153.220:104175):
saddr=02000185C0A801940000000000000000
type=SOCKETCALL msg=audit(1138596153.220:104175): nargs=3 a0=7
a1=9b6a6f0 a2=10
type=AVC msg=audit(1138596160.388:104176): avc: denied {
name_connect } for pid=23797 comm="spamd" dest=389
scontext=root:system_r:spamd_t
tcontext=system_u:object_r:ldap_port_t tclass=tcp_socket
type=SYSCALL msg=audit(1138596160.388:104176): arch=40000003
syscall=102 success=no exit=-13 a0=3 a1=bfb2dc20 a2=1229cb8 a3=7
items=0 pid=23797 auid=600 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0
sgid=0 fsgid=0 comm="spamd" exe="/usr/bin/perl"
type=SOCKADDR msg=audit(1138596160.388:104176):
saddr=02000185C0A801940000000000000000
type=SOCKETCALL msg=audit(1138596160.388:104176): nargs=3 a0=7
a1=9b20050 a2=10
type=AVC msg=audit(1138596164.032:104177): avc: denied {
name_connect } for pid=23797 comm="spamd" dest=389
scontext=root:system_r:spamd_t
tcontext=system_u:object_r:ldap_port_t tclass=tcp_socket
type=SYSCALL msg=audit(1138596164.032:104177): arch=40000003
syscall=102 success=no exit=-13 a0=3 a1=bfb2dc20 a2=1229cb8 a3=7
items=0 pid=23797 auid=600 uid=0 gid=0 euid=99 suid=0 fsuid=99
egid=99 sgid=0 fsgid=99 comm="spamd" exe="/usr/bin/perl"
type=SOCKADDR msg=audit(1138596164.032:104177):
saddr=02000185C0A801940000000000000000
type=SOCKETCALL msg=audit(1138596164.032:104177): nargs=3 a0=7
a1=9b84af0 a2=10
I get these also on my system. So you're not the only one. Is there a
fix for this?
Ok I have placed an updated version of policy on my people page. It
will be in rawhide tonight.
ftp://people.redhat.com/dwalsh/SELinux/Fedora
But you can solve these problems yourself by using audit2allow and
loadable modules.
If you ran
audit2allow -M gives me:
unknown option, '-M'
audit2allow [-d] [-v] [-l] [-i <inputfile> ] [-o <outputfile>]
-d read input from output of /bin/dmesg
-v verbose output
-l read input only after last "load_policy"
-i read input from <inputfile>
-o append output to <outputfile>
Are modules only a function in FC5test2 right now (I'm running FC4 just
in case you didn't know that)?
audit2allow -M spamd /var/log/audit/audit.log
You would have seen something like this.
audit2allow -M spamd -i /var/log/audit/audit.log
Generating type enforcment file: spamd.te
Compiling policy: checkmodule -M -m -o spamd.mod spamd.te
semodule_package -o spamd.pp -m spamd.mod
Building package: semodule_package -o spamd.pp -m spamd.mod
******************** IMPORTANT ***********************
In order to load this newly created policy package into the kernel,
you are required to execute
semodule -i spamd.pp
If you then ran the semodue -i spamd.pp
I don't have a semodule program (either in path or with a search of all
files)
it should fix your problem.
This is the te file that audit2allow created
module spamd 1.0;
require {
role object_r;
role system_r;
class tcp_socket name_connect;
type ldap_port_t;
type spamd_t;
};
allow spamd_t ldap_port_t:tcp_socket name_connect;
When policy gets updated with your fix, you could remove this loadable
module with the command
semodule -r slapd
semodule -l
will list all of your loadable modules.
Same problem as above.
Thanks for the help, Dan. I guess I'll just wait until the next policy
release. I'll make sure to remember the commands for when I do go to FC5
and can use these. I still have problems with dovecot and selinux (right
now I have a boolean set unenforcing dovecot. I've never dug far enough
to make a bug report worthwhile. It's probably half my fault anyway) and
it would have been a lot of help for other things I've had to work around.
Thanks for the help,
Justin
